forked from crowetic/commerce
34 lines
824 B
TypeScript
34 lines
824 B
TypeScript
import { FC, useState, useEffect } from 'react'
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import throttle from 'lodash.throttle'
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import cn from 'classnames'
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import s from './Navbar.module.css'
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const NavbarRoot: FC = ({ children }) => {
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const [hasScrolled, setHasScrolled] = useState(false)
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useEffect(() => {
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const handleScroll = throttle(() => {
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const offset = 0
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const { scrollTop } = document.documentElement
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const scrolled = scrollTop > offset
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if (hasScrolled !== scrolled) {
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setHasScrolled(scrolled)
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}
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}, 200)
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document.addEventListener('scroll', handleScroll)
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return () => {
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document.removeEventListener('scroll', handleScroll)
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}
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}, [hasScrolled])
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return (
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<div className={cn(s.root, { 'shadow-magical': hasScrolled })}>
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{children}
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</div>
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)
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}
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export default NavbarRoot
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